• A MODEL FOR HEAVY GAS DISPERSION IN THE ATMOSPHERE 

      Eidsvik, Karl J. (NILU OR;18/79, Research report, 1979)
      A simple model for the dispersion of heavy and cold gas cloud is developed. The results are not critically dependent upon coefficient variations. The predicted spread show good correspondence with data from Forton.
    • DISPERSION OF HEAVY CLOUDS IN THE ATMOSPHERE 

      Eidsvik, Karl J. (NILU OR;32/78, Research report, 1978)
      The report describes a model for the dispersion of heavy and cold gas clouds in the atmosphere, where the essential state variables are described as simple as possible. The results do not depend critically upon uncerntaincies ...
    • ESTIMATES OF CONCENTRATION FLUCTUATIONS IN AN INSTANTANEOUS CLOUD 

      Eidsvik, Karl J. (NILU OR;42/79, Research report, 1979)
      Data from transverse line sampling of continous plumes is used to estimate the stochastic structure of the concentration field.
    • ESTIMATION OF TIMESERIE MODELS FOR HORIZONTAL WIND REPRESENTATIVE FOR THE NORWEGIAN WEST COAST 

      Eidsvik, Karl J. (NILU OR;38/80, Research report, 1980)
      Timeseries of horizontal wind samples at intervals of Δt = 5 min are analyzed. Power spectra are estimated via autoregressive model fitting. Akaike's identification procedure is used.
    • HEAVY GAS DISPERSION MODEL WITH LIQUID RELEASE 

      Eidsvik, Karl J. (NILU OR;24/80, Research report, 1980)
      NILUs modell for spredning av tunge kalde gasser (Eidsvik, 1) er modifisert slik at utslippet kan være flytende.
    • ON THE PREDICTION OF HAZARD AREA RESULTING FROM A GAS RELEASE 

      Eidsvik, Karl J. (NILU OR;1/81, Research report, 1981)
      A synthesis of hazard area prediction followinq the release of a hazardous gas cloud is developed. At a fixed risk level the predicted hazard area is estimated to depend much upon prediction errors for actual atmospheric ...